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Test your basic knowledge |
Dairy Cattle And Reproduction
Start Test
Study First
Subjects
:
industries
,
dairy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm
Sperm growth rate
scrotal circumference (BSE)
Dairy Cattle Lactation (standard)
visual evaluation (BSE)
2. Way to know everything is alright with the breeding male
sigmoid flexure
vulva
kidney stones also called ________ ___________ can develop in the sigmoid flexure
purpose of Breeding Soundness Exam (BSE) for males
3. (FSH) causes egg to mature in females
functions of progestrone
Holstein Cow
Follical Stimulating in females
colostrum
4. ~60 days before calving
dry-off time in dairy cattle
sow estrus cycle
semen evaluation (BSE)
growth lost from castration methods (knife & band)
5. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.
visual evaluation (BSE)
dartos muscle
uterus
dairy cattle pregnancy check
6. 2 month growth cycle. stored in the epididymis of the bull
cow gestation
Sperm growth rate
spermatogenesis
things to check for in a breeding soundness exam (BSE)
7. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation
things to check for in a breeding soundness exam (BSE)
ewe estrus
effects of BST
Hard
8. Way to know everything is alright with the breeding male
purpose of Breeding Soundness Exam (BSE) for males
ewe estrus
sow ovulation
Blood
9. Larger the cow - more milk is produced; smaller the cow - less milk is produced
behavioral signs of estrus
reason for seasonal breeding periods
1. more cost effective - 2. powdered milk is in excess production
Size of cow in relation to the amount of milk produced
10. Check feet and legs - look for masculine traits in build such as crest and muscling
ewe's estrous cycle
visual evaluation (BSE)
cervix
ewe estrus cycle
11. 265-285 days
Follical Stimulating in females
purpose of Breeding Soundness Exam (BSE) for males
rectal palpation (BSE)
Dairy Cattle Gestation
12. (switzerland) 2nd in size and milk production - most muscle -
Brown Swiss Cow
prostate gland
spermatogenesis
Dairy Cattle Lactation (standard)
13. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days
epididymis: definition - 3 parts - 4 functions
hormones
Dairy Cattle Lactation (standard)
femininity of a heifer
14. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co
6-8 weeks
burdizzo
effects of BST
sigmoid flexure
15. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)
Holstein Cow
estrous
organs used in spermatogenesis
vulva
16. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING
reason for seasonal breeding periods
semen evaluation (BSE)
estrus
sperm cell
17. Failure to have one testis (gonad) to descend
Sperm growth rate
monorchid
spermatogenesis
4 major reasons for culling dairy cows
18. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)
kidney stones also called ________ ___________ can develop in the sigmoid flexure
testosterone
mare gestation
estrous
19. 1-3 days
mare estrus
oviducts
sow estrus
Size of cow in relation to the amount of milk produced
20. 283 days
cow gestation
seminiferous tubules
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
behavioral signs of estrus
21. Produce testosterone. located between the seminiferous tubules
purpose of Breeding Soundness Exam (BSE) for males
elastrator
Dairy calves are removed from cow at birth to...
leydid or interstitial cells
22. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed
Avg. bull specs
oviducts
Dairy calves are removed from cow at birth to...
cow estrus cycle
23. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.
retractor muscles
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
mare gestation
1. more cost effective - 2. powdered milk is in excess production
24. What helps regulate spermatogenesis?
Hard
accessory sex glands
Dairy Cattle milking schedule
testosterone
25. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %
penis proper
urethra
Jersey Cow
Where livelihood is in agriculture
26. Failure to have one testis (gonad) to descend
prostaglandin
monorchid
Reasons for gestation length being affected
1. more cost effective - 2. powdered milk is in excess production
27. (male) pushes the testes outward toward the legs for a cool-down off of the body
cremaster muscle
Blood
sperm cell
mare's estrous cycle
28. FEED
#1 cost in production
dartos muscle
vagina
sertoli cells
29. Knife-loose ~1wk of growth. band-loose ~2wks of growth.
cow gestation
Dairy Cattle Gestation
growth lost from castration methods (knife & band)
butterfat
30. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm
scrotal circumference (BSE)
reasons for castration
hormones
reason for seasonal breeding periods
31. ~305 days (altough often longer due to breeding difficulties)
humans: stress level vs sperm
Dairy Cattle Lactation (standard)
leydid or interstitial cells
burdizzo
32. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.
penis sizes vs delivering methods
van deferens
Bull's fibro-elastic penis
Dairy Cattle Lactation (standard)
33. Look for infection - split - and rupture of the penis
mare ovulation
seasonally polyestrous
penis and prepuce observation (BSE)
monestrous
34. 4-6 days
eminal vesicles
functions of progestrone
mare estrus
butterfat
35. (FSH) causes egg to mature in females
kidney stones also called ________ ___________ can develop in the sigmoid flexure
rectal palpation (BSE)
Follical Stimulating in females
1. more cost effective - 2. powdered milk is in excess production
36. Front feet and head first. (except for hogs and dogs)
retractor muscles
Culls bulls earlier (2 reasons)
normal presentation of the fetus
Lutinizing Hormone in females
37. 30-38 hours after estrus cycle begins
polyestrous
Culls bulls earlier (2 reasons)
sow ovulation
effects of estrogen
38. Animals which have many estrous periods per year (ex: cow - sow)
polyestrous
Reasons for gestation length being affected
Dairy Cattle Lactation (standard)
Mares
39. Sperm production
Mares
Follical Stimulating in females
spermatogenesis
sow gestation
40. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days
epididymis: definition - 3 parts - 4 functions
mastitis
ewe gestation
Where livelihood is in agriculture
41. 114 days
monestrous
oviducts
sow gestation
Size of cow in relation to the amount of milk produced
42. 4-6 days
mare estrus
reasons for castration
Culls bulls earlier (2 reasons)
Where livelihood is in agriculture
43. (male) pushes the testes upward toward the body for warmth or protection
cowper's gland
vulva
dartos muscle
Grading choice
44. When are steers and heifers weaned from bottle feeding?
6-8 weeks
Bull's fibro-elastic penis
cryptorchid
eminal vesicles
45. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).
penis sizes vs delivering methods
normal presentation of the fetus
hormones
Dairy Cattle milking schedule
46. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract
Parturition
eminal vesicles
why does the cow need fat deposits during pregnancy?
visual evaluation (BSE)
47. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat
prostaglandin
normal presentation of the fetus
Holstein Cow
Follical Stimulating in males
48. Urinary calculi.
Bull's fibro-elastic penis
kidney stones also called ________ ___________ can develop in the sigmoid flexure
Bull's fibro-elastic penis
Size of cow in relation to the amount of milk produced
49. Start of the reproductive tract for the female. located outside of the body
~1 month
Holstein Cow
organs used in spermatogenesis
vulva
50. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off
semen evaluation (BSE)
hypothalamus and pituitary gland
mare estrus
elastrator